does not have a job scheduling center node, but the programs based on the deployment job framework trigger the scheduling when the corresponding time point is reached. The registration cen‐ ter is only used as sharding and cleaning. Elastic Distributed Implementation • The first server went online to trigger the main server election. Once the main server goes offline, the election is triggered again, and these nodes to coordinate the sharding and high availability of distributed jobs. You can write TRIGGER in the job running instance node to indicate that the instance will be executed once immediately

IP 地址 和 PID 构成。作业运行实例主键均为临时节点，当作业实例上线时注册，下线时自动清理。注册中心监 控这些节点的变化来协调分布式作业的分片以及高可用。可在作业运行实例节点写入 TRIGGER 表示该 实例立即执行一次。 sharding 节点 作业分片信息，子节点是分片项序号，从零开始，至分片总数减一。分片项序号的子节点存储详细信息。 每个分片项下的子节点用于控制和记录分片运行状态。节点详细信息说明： CHAR(50) 是 主机 IP sharding_item INT 是 分片项 execu‐ tion_source VAR‐ CHAR(20) 是 作业执行来源。可选值为 NORMAL_TRIGGER, MISFIRE, FAILOVER failure_cause VAR‐ CHAR(2000) 否 执行失败原因 is_success BIT 是 是否执行成功 start_time elasticjob.lifecycle.api.JobOperateAPI 触发作业执行 作业在不与当前运行中作业冲突的情况下才会触发执行，并在启动后自动清理此标记。 方法签名：void trigger(Optional jobName, Optional serverIp) • Parameters: – jobName —作业名称 – serverIp —作业服务器 IP 地址 禁用作业

├──status ├ ├ ├ ├──UUID ├ ├ ├ ├──.... ├ ├ ├──worker_id ├ ├ ├ ├──UUID ├ ├ ├ ├──.... ├ ├ ├──process_trigger ├ ├ ├ ├──process_list_id:UUID ├ ├ ├ ├──.... ├ ├ ├──labels ├ ├ ├ ├──UUID ├ ├ ├ ├──.... ├ ├──storage_nodes migration completed As required by security audit teams, the business system needs to periodically trigger key modifications or through some emergency events. We need to perform migration data cleansing integrating with XAtransaction. Answer: 1. shardingsphere-transaction-xa-core include atomikos, it will trigger auto‐configuration mechanism in spring‐boot, add @SpringBootApplication(exclude = JtaAutoConfigu-

├──status ├ ├ ├ ├──UUID ├ ├ ├ ├──.... ├ ├ ├──worker_id ├ ├ ├ ├──UUID ├ ├ ├ ├──.... ├ ├ ├──process_trigger ├ ├ ├ ├──process_list_id:UUID ├ ├ ├ ├──.... ├ ├ ├──labels ├ ├ ├ ├──UUID ├ ├ ├ ├──.... ├ ├──storage_nodes migration completed As required by security audit teams, the business system needs to periodically trigger key modifications or through some emergency events. We need to perform migration data cleansing integrating with XAtransaction. Answer: 1. shardingsphere-transaction-xa-core include atomikos, it will trigger auto‐configuration mechanism in spring‐boot, add @SpringBootApplication(exclude = JtaAutoConfigu-

├ ├ ├ ├ ├──UUID ├ ├ ├ ├──.... ├ ├ ├──worker_id ├ ├ ├ ├──UUID ├ ├ ├ ├──.... ├ ├ ├──process_trigger ├ ├ ├ ├──process_list_id:UUID ├ ├ ├ ├──.... ├ ├──storage_nodes ├ ├ ├──disable ├ ├ ├ ├──${schema_1 with transaction of XA Answer: 1. shardingsphere-transaction-xa-core include atomikos, it will trigger auto‐configuration mechanism in spring‐boot, add @SpringBootApplication(exclude = JtaAutoConfigu-

├──UUID ├ ├ ├ ├──.... ├ ├ ├──worker_id ├ ├ ├ ├──UUID ├ ├ ├ ├──.... ├ ├ ├──show_process_list_trigger ├ ├ ├ ├──process_id:UUID ├ ├ ├ ├──.... ├ ├ ├──labels ├ ├ ├ ├──UUID ├ ├ ├ ├──.... ├ ├──storage_nodes integrating with XAtransaction. Answer: 1. shardingsphere-transaction-xa-core include atomikos, it will trigger auto‐configuration mechanism in spring‐boot, add @SpringBootApplication(exclude = JtaAutoConfigu-

├──UUID ├ ├ ├ ├──.... ├ ├ ├──worker_id ├ ├ ├ ├──UUID ├ ├ ├ ├──.... ├ ├ ├──show_process_list_trigger ├ ├ ├ ├──process_id:UUID ├ ├ ├ ├──.... ├ ├ ├──labels ├ ├ ├ ├──UUID ├ ├ ├ ├──.... ├ ├──qualified_data_sources integrating with XAtransaction. Answer: 1. shardingsphere-transaction-xa-core include atomikos, it will trigger auto‐configuration mechanism in spring‐boot, add @SpringBootApplication(exclude = JtaAutoConfigu-

ShardingTransaction of XA Answer: 1. shardingsphere-transaction-xa-core include atomikos, it will trigger auto‐configuration mechanism in spring‐boot, add @SpringBootApplication(exclude = JtaAutoConfigu-

with transaction of XA Answer: 1. shardingsphere-transaction-xa-core include atomikos, it will trigger auto‐configuration mechanism in spring‐boot, add @SpringBootApplication(exclude = JtaAutoConfigu-

with transaction of XA Answer: 1. shardingsphere-transaction-xa-core include atomikos, it will trigger auto‐configuration mechanism in spring‐boot, add @SpringBootApplication(exclude = JtaAutoConfigu-